Visual optical DNA (Deoxyribose Nucleic Acid) searching material evidence discovering instrument
By designing a protective mechanism in the DNA search physical evidence discovery instrument, using the mechanical structure of the pulling component and the oblique rod slider, the high-magnification ultra-macro lens is protected, solving the problem of damage to the lens when not in use or moving, and improving the equipment Stability and service life.
Patent Information
- Application Number
- CN202420327061.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-22
AI Technical Summary
The high-magnification ultra-macro lenses of existing DNA shedding cell discoverers are prone to friction and damage when they are not needed or when they are moved, which affects their service life.
A visual optical DNA search physical discovery instrument including mounting grip, discovery instrument body and protection mechanism is designed. By pulling the assembly, the oblique rod and the slider slide, the closing plate can protect the lens and prevent frictional damage.
It effectively prevents friction damage from high-magnification ultra-macro lenses when not in use or when moving, extends the service life of the device, and improves its stability and reliability.
Smart Images
Figure CN222259107U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of criminal investigation, in particular to a visualized optical DNA search and evidence discovery instrument. Background Art
[0002] Evidence search and discovery instrument is an important equipment for on-site search and discovery of physical evidence traces by public security, procuratorate, court, and judicial departments. DNA biological material discovery device uses LED as the excitation light source, and uses the high brightness and good monochromaticity of LED to induce trace physical evidence to emit light. It is particularly suitable for various physical evidence searches and non-destructive testing of fingerprints at the public security scene. However, the current microscope that can implement magnification is only suitable for laboratory work, and cannot directly collect suspected exfoliated cells at the scene, which affects the difficulty of solving criminal cases. At the same time, the existing DNA exfoliated cell discovery instrument has a low accuracy of the filter wavelength, which affects the extraction efficiency of DNA exfoliated cells.
[0003] At present, the prior art (CN 211206256 U) discloses a portable DNA trace evidence discovery instrument, including an imaging system, the imaging system includes a high-magnification ultra-macro lens with a built-in lens group, a lighting system is fixed on the inner wall of the front outer edge of the high-magnification ultra-macro lens, the lighting system includes an outer edge, one or more lens assemblies, the lens assembly is tightly connected to the inner wall of the outer edge, the lens assembly includes an LED board and an optical filter, the LED board is provided with LED lamp beads, and a gasket is provided between the LED board and the optical filter to prevent the LED board and the optical filter from fitting each other. The utility model is a portable DNA trace evidence discovery instrument, the optical filter has high wavelength accuracy, so that the extraction efficiency of DNA exfoliated cells is high, and DNA trace evidence can be more accurately discovered and extracted.
[0004] With the above method, the high-magnification super macro lens is exposed, which may cause friction and damage to the high-magnification super macro lens when it is not needed or during movement, thereby rendering the high-magnification super macro lens unusable. Utility Model Content
[0005] The utility model aims to provide a visualized optical DNA search evidence discovery instrument, aiming to solve the problem that a high-magnification ultra-macro lens may be exposed to the outside and may be damaged by friction when not in use or during movement.
[0006] To achieve the above-mentioned purpose, the utility model provides a visual optical DNA search evidence discovery instrument, comprising a mounting handle, a discovery instrument body and a protection mechanism, wherein the protection mechanism comprises a pulling assembly, two inclined rods, two slide blocks and two closing plates;
[0007] The discovery instrument body is arranged on the mounting handle, the pulling assembly is arranged on one side of the mounting handle, the two oblique rods are respectively arranged on one side of the pulling assembly, the two sliders are respectively rotatably connected to the two oblique rods, and are respectively slidably connected to the mounting handle, and the two closing plates are respectively fixedly connected to the two sliders, and are respectively located on one side of the two sliders.
[0008] Wherein, the pulling assembly includes a vertical rod, a horizontal plate and a pulling rod, the vertical rod is slidingly connected to the mounting handle and is located on one side of the mounting handle, the horizontal plate is fixedly connected to the vertical rod and is rotationally connected to the two oblique rods, and the pulling rod is fixedly connected to the vertical rod and is located on one side of the vertical rod.
[0009] Wherein, the protection mechanism also includes a guide rail and a limit block, the guide rail is fixedly connected to the mounting handle and is located on one side of the mounting handle, the limit block is fixedly connected to the guide rail and to the vertical rod and is located between the vertical rod and the guide rail.
[0010] Wherein, the protection mechanism also includes a sliding rod and two sliding cylinders, the sliding rod is fixedly connected to the mounting handle and is located on one side of the mounting handle, and the two sliding cylinders are respectively slidably connected to the sliding rod and respectively fixedly connected to the two closing plates.
[0011] Wherein, the protection mechanism further comprises two sealing rings, which are respectively fixedly connected to the two closing plates and are respectively located on one side of the two closing plates.
[0012] Wherein, the protection mechanism also includes a card block and a return spring, the card block is slidably connected to the mounting handle and is located on one side of the mounting handle, the return spring is fixedly connected to the card block and to the mounting handle, and is located between the mounting handle and the card block.
[0013] The utility model discloses a visualized optical DNA search and physical evidence discovery instrument, wherein the installation handle provides installation conditions for the discovery instrument body and the protection mechanism, and the discovery instrument body can be used to conduct on-site search and discover physical evidence traces. When the discovery instrument body is not needed, the pulling assembly is pulled, and the pulling assembly drives the two inclined rods to rotate. When the angle between the two inclined rods and the pulling assembly becomes smaller, the two inclined rods drive the two sliders to slide on the installation handle and approach each other until the two closing plates are in contact and closed, so that the lens of the discovery instrument body can be protected, thereby solving the problem that the high-magnification super-macro lens may be damaged by friction when it is exposed outside and not needed or during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0015] Figure 1 It is a structural schematic diagram of a visualized optical DNA search and evidence discovery instrument according to the first embodiment of the utility model.
[0016] Figure 2 It is a cross-sectional view of a visualized optical DNA search and evidence discovery instrument according to the first embodiment of the utility model.
[0017] Figure 3 It is a cross-sectional view of a visualized optical DNA search and evidence discovery instrument according to the second embodiment of the utility model.
[0018] 101-installation handle, 102-discovery instrument body, 103-protection mechanism, 104-pulling assembly, 105-oblique rod, 106-slider, 107-closing plate, 108-guide rail, 109-limiting block, 110-sliding rod, 111-sliding cylinder, 112-sealing ring, 113-vertical rod, 114-horizontal plate, 115-pull rod, 201-block, 202-reset spring. DETAILED DESCRIPTION
[0019] The first embodiment of the present application is:
[0020] See also Figure 1-Figure 2 , Figure 1 This is a schematic diagram of the structure of a visual optical DNA search evidence discovery instrument. Figure 2 It is a cross-sectional view of a visual optical DNA search evidence discovery instrument.
[0021] The utility model provides a visual optical DNA search evidence finder, including a mounting handle 101, a finder body 102 and a protection mechanism 103, wherein the protection mechanism 103 includes a pulling assembly 104, two inclined rods 105, two sliders 106, two closing plates 107, a guide rail 108, a stop block 109, a slide bar 110, two slide cylinders 111 and two sealing rings 112, and the pulling assembly 104 includes a vertical rod 113, a horizontal plate 114 and a pull rod 115. The above-mentioned solution solves the problem that the high-magnification ultra-macro lens may be exposed to the outside when not in use or during movement, which may cause friction damage to the high-magnification ultra-macro lens. It can be understood that the above-mentioned solution can be used in the scene of protecting the lens of the finder body 102, and can also be used to solve the problem of unstable movement of the two closing plates 107.
[0022] According to this specific embodiment, the discovery instrument body 102 is arranged on the mounting handle 101, the pulling assembly 104 is arranged on one side of the mounting handle 101, the two inclined rods 105 are respectively arranged on one side of the pulling assembly 104, the two sliders 106 are respectively rotatably connected to the two inclined rods 105, and are respectively slidably connected to the mounting handle 101, and the two closing plates 107 are respectively fixedly connected to the two sliders 106, and are respectively located on one side of the two sliders 106. The mounting handle 101 provides mounting conditions for the discovery instrument body 102 and the protection mechanism 103. The discovery instrument body 102 can be used to conduct on-site searches to discover physical evidence and traces. Pulling the pulling assembly 104 can drive the two inclined rods 105 to rotate. When the angle between the two inclined rods 105 and the pulling assembly 104 becomes smaller, the two inclined rods 105 drive the two sliders 106 to slide closer to each other on the mounting handle 101. When the angle between the two inclined rods 105 and the pulling assembly 104 becomes larger, the two inclined rods 105 drive the two sliders 106 to slide away from each other on the mounting handle 101. The movement of the two sliders 106 can drive the two closing plates 107 to move closer to or away from each other. The lens of the discovery instrument body 102 can be protected by the two closing plates 107.
[0023] The vertical rod 113 is slidably connected to the mounting handle 101 and is located on one side of the mounting handle 101. The horizontal plate 114 is fixedly connected to the vertical rod 113 and is rotatably connected to the two oblique rods 105. The pull rod 115 is fixedly connected to the vertical rod 113 and is located on one side of the vertical rod 113. Pulling the pull rod 115 can drive the vertical rod 113 to move, and the movement of the vertical rod 113 can drive the horizontal plate 114 to move, and the movement of the horizontal plate 114 can drive the two oblique rods 105 to rotate.
[0024] Secondly, the guide rail 108 is fixedly connected to the mounting handle 101 and is located on one side of the mounting handle 101. The limit block 109 is fixedly connected to the guide rail 108 and to the vertical rod 113 and is located between the vertical rod 113 and the guide rail 108. The guide rail 108 provides installation conditions for the limit block 109. When the vertical rod 113 moves, the limit block 109 is driven to slide on the guide rail 108. The limit block 109 guides and limits the vertical rod 113, thereby improving the stability of the guide rail 108 when it moves.
[0025] At the same time, the slide bar 110 is fixedly connected to the installation handle 101 and is located on one side of the installation handle 101. The two slide cylinders 111 are respectively slidably connected to the slide bar 110 and are respectively fixedly connected to the two closing plates 107. The slide bar 110 provides installation conditions for the two slide cylinders 111. When the two closing plates 107 move, the two slide cylinders 111 are driven to slide on the slide bar 110. The two closing plates 107 are guided and supported by the two slide cylinders 111, thereby improving the stability of the closing plates 107 when they move.
[0026] In addition, two sealing rings 112 are respectively fixedly connected to the two closing plates 107 and are respectively located on one side of the two closing plates 107. The two sealing rings 112 can improve the sealing of the two closing plates 107 after closing, and prevent water from entering the lens of the discovery instrument body 102.
[0027] When the discovery instrument body 102 is not needed, pull the pull rod 115, the pull rod 115 drives the vertical rod 113 to move to the side away from the mounting handle 101, the vertical rod 113 drives the horizontal plate 114 to move, and the horizontal plate 114 drives the two oblique rods 105 to rotate. When the angle between the two oblique rods 105 and the pulling assembly 104 becomes smaller, the two oblique rods 105 drive the two sliders 106 to slide on the mounting handle 101 and approach each other until the two closing plates 107 contact and close, so as to protect the lens of the discovery instrument body 102, thereby solving the problem that the high-magnification super macro lens is exposed outside and may be damaged by friction when it is not needed or during movement.
[0028] The second embodiment of the present application is:
[0029] See also Figure 3 , Figure 3 It is a cross-sectional view of a visual optical DNA search evidence discovery instrument.
[0030] On the basis of the first embodiment, in the utility model, a visualized optical DNA search and evidence discovery instrument, the protection mechanism 103 further includes a block 201 and a return spring 202 .
[0031] According to the present specific embodiment, the clamping block 201 is slidably connected to the mounting handle 101 and is located on one side of the mounting handle 101. The return spring 202 is fixedly connected to the clamping block 201 and is fixedly connected to the mounting handle 101 and is located between the mounting handle 101 and the clamping block 201. The vertical rod 113 has a plurality of clamping holes. The clamping block 201 can be matched with the corresponding clamping holes to fix the vertical rod 113. The clamping block 201 can be bounced into the corresponding clamping hole by the resilience of the return spring 202.
[0032] The vertical rod 113 has a plurality of locking holes, and the locking block 201 cooperates with the corresponding locking holes to fix the vertical rod 113 . The locking block 201 can be bounced into the corresponding locking hole by the rebound force of the reset spring 202 .
[0033] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. A visual optical DNA search evidence finder, comprising a mounting handle and a finder body, wherein the finder body is arranged on the mounting handle, characterized in that: Also included is a protection mechanism, which includes a pulling assembly, two inclined rods, two sliders and two closing plates; The pulling assembly is arranged on one side of the mounting handle, the two oblique rods are respectively arranged on one side of the pulling assembly, the two sliders are respectively rotatably connected to the two oblique rods and are respectively slidably connected to the mounting handle, and the two closing plates are respectively fixedly connected to the two sliders and are respectively located on one side of the two sliders.
2. A visual optical DNA search evidence discovery instrument as claimed in claim 1, characterized in that: The pulling assembly includes a vertical rod, a horizontal plate and a pulling rod. The vertical rod is slidably connected to the mounting handle and is located on one side of the mounting handle. The horizontal plate is fixedly connected to the vertical rod and is rotationally connected to the two oblique rods. The pulling rod is fixedly connected to the vertical rod and is located on one side of the vertical rod.
3. A visual optical DNA search evidence discovery instrument as claimed in claim 2, characterized in that: The protection mechanism also includes a guide rail and a limit block, wherein the guide rail is fixedly connected to the mounting handle and is located on one side of the mounting handle, and the limit block is fixedly connected to the guide rail and to the vertical rod and is located between the vertical rod and the guide rail.
4. A visual optical DNA search evidence discovery instrument as claimed in claim 3, characterized in that: The protection mechanism also includes a slide bar and two slide cylinders. The slide bar is fixedly connected to the mounting handle and is located on one side of the mounting handle. The two slide cylinders are respectively slidably connected to the slide bar and are respectively fixedly connected to the two closing plates.
5. A visual optical DNA search evidence discovery instrument as claimed in claim 4, characterized in that: The protection mechanism also includes two sealing rings, which are fixedly connected to the two closing plates respectively and are located on one side of the two closing plates respectively.
6. A visual optical DNA search evidence discovery instrument as claimed in claim 5, characterized in that: The protection mechanism also includes a card block and a return spring, wherein the card block is slidably connected to the mounting handle and is located on one side of the mounting handle, and the return spring is fixedly connected to the card block and the mounting handle and is located between the mounting handle and the card block.